condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.394186 0.0 0.987325 12 h after light 0.0 0.0 0.0 4 h after dark 0.330766 0.0 0.536975 8 h after dark 0.43193233333333336 0.0 0.897534 12 h after dark 0.3413256666666667 0.0 0.603414